32 lines
882 B
Java
32 lines
882 B
Java
package javax.annotation;
|
|
|
|
import java.lang.annotation.Documented;
|
|
import java.lang.annotation.Retention;
|
|
import java.lang.annotation.RetentionPolicy;
|
|
import javax.annotation.meta.TypeQualifier;
|
|
import javax.annotation.meta.TypeQualifierValidator;
|
|
import javax.annotation.meta.When;
|
|
|
|
/**
|
|
* The annotated element must not be null.
|
|
* <p>
|
|
* Annotated fields must not be null after construction has completed.
|
|
* <p>
|
|
* When this annotation is applied to a method it applies to the method return
|
|
* value.
|
|
*/
|
|
@Documented
|
|
@TypeQualifier
|
|
@Retention(RetentionPolicy.RUNTIME)
|
|
public @interface Nonnull {
|
|
When when() default When.ALWAYS;
|
|
|
|
class Checker implements TypeQualifierValidator<Nonnull> {
|
|
|
|
public When forConstantValue(Nonnull qualifierArgument, Object value) {
|
|
if (value == null) return When.NEVER;
|
|
return When.ALWAYS;
|
|
}
|
|
}
|
|
}
|